O'Brien, Adam
Current rating: 1469
Record: 4-6
| Grand Prix Columbus 2007 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 194 | Palmer, Josh (1500) | Won 2-0 | +181483 |
| 2legacy | 15 | Gosselin, Christopher (1576) | Lost 1-2 | -161467 |
| 3legacy | 199 | Bilz, Dylan J (1468) | Lost 0-2 | -181449 |
| 4legacy | 298 | Scott, Alex (1483) | Won 2-0 | +191468 |
| 5legacy | 309 | Sohlden, Jared (1499) | Won 2-0 | +181486 |
| 6legacy | 179 | Byrd, Wes T (1504) | Lost 0-2 | -171469 |
| average opponent: 1505record: 3-3 | new rating: 1469 | |||
| Grand Prix Anaheim 2003 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 54 | Cheng, Jen (1500) | Won 2-1 | +181518 |
| 2extended | 31 | Chipp, Michael (1555) | Lost 0-2 | -171501 |
| 3extended | 81 | Kelly, Sean (1485) | Lost 1-2 | -191482 |
| 4extended | 119 | Kvetkosky, Wayne (1499) | Lost 1-2 | -171465 |
| average opponent: 1510record: 1-3 | new rating: 1465 | |||